Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION - Stock Option Activity (Details)

v3.19.2
STOCK-BASED COMPENSATION - Stock Option Activity (Details) - USD ($)
1 Months Ended 6 Months Ended
Oct. 12, 2018
Jan. 17, 2019
Jun. 30, 2019
Share-based Compensation, Stock Options, Activity [Line Items]      
Granted - Weighted Average Exercise Price (in dollars per share) $ 2.61 $ 1.99  
Stock Option Activity [Member]      
Share-based Compensation, Stock Options, Activity [Line Items]      
Outstanding - Number of Shares Issuable Upon Exercise of Outstanding Options   232,343 232,343
Granted - Number of Shares Issuable Upon Exercise of Outstanding Options     321,930
Expired- Number of Shares Issuable Upon Exercise of Outstanding Options     0
Forfeited - Number of Shares Issuable Upon Exercise of Outstanding Options     (33,559)
Outstanding - Number of Shares Issuable Upon Exercise of Outstanding Options     520,714
Exercisable - Number of Shares Issuable Upon Exercise of Outstanding Options     117,709
Unvested - Number of Shares Issuable Upon Exercise of Outstanding Options     403,005
Outstanding - Weighted Average Exercise Price (in dollars per share)   $ 14.37 $ 14.37
Granted - Weighted Average Exercise Price (in dollars per share)     2.33
Expired- Weighted Average Exercise Price (in dollars per share)     0
Forfeited - Weighted Average Exercise Price (in dollars per share)     4.78
Outstanding - Weighted Average Exercise Price (in dollars per share)     7.55
Exercisable - Weighted Average Exercise Price (in dollars per share)     24.83
Unvested - Weighted Average Exercise Price (in dollars per share)     $ 2.50
Exercisable - Weighted Average Remaining Contracted Term in Years     8 years 4 months 21 days
Unvested - Weighted Average Remaining Contracted Term in Years     9 years 5 months 5 days
Exercisable - Aggregate Intrinsic Value (in dollars)     $ 0
Unvested - Aggregate Intrinsic Value (in dollars)     $ 23,635